IonstormOutfly the living storm.

Touch anywhere to move; your weapons fire themselves. Build your loadout one level-up at a time, claim Relics from boss caches, and spend idle Cores at the Forge between runs.

Free to start on iPhone and Android · No ads, ever.

No ads

One-thumb flight

Storm Surges

Fair rankings

How it plays

Move with one thumb, auto-fire wild weapons, and survive the living storm.

Fly into a violet storm with one thumb and let six auto-firing weapons do the shooting. Collect gems, draft upgrades, evolve your kit, and trigger Relics when a Storm Surge crowds the screen. The Reactor earns Cores between sessions; the Forge builds stronger personal flights. Daily Storm and Open League rankings give every pilot the same starting build, free or Pro.

  • One-thumb control — weapons fire themselves
  • Six weapons, paired evolutions, passives, and build-changing Catalysts
  • Storm Surges, boss caches, tactical Relics, and fair fixed-start rankings
Six weapons. Your build.

The loop

Every run follows one honest loop.

  1. 01Move
  2. 02Vacuum XP
  3. 03Draft an upgrade
  4. 04Survive a Storm Surge
  5. 05Face the Collapsar
  6. 06Trigger a Relic
  7. 07Collect Reactor Cores
  8. 08Forge a stronger regular flight.

What is inside

Inside Ionstorm.

01

One thumb, full storm

Touch anywhere and a floating joystick appears under your thumb. Your weapons fire themselves — your only job is to move, survive, and choose what to build.

02

Build your loadout one level at a time

Every level offers one of three upgrades — new weapons, passive modules, Catalysts, or late-run overdrives. The run you survive with is the loadout you drafted on the fly.

03

Break the storm. Keep flying.

Face the Collapsar, then rotating bosses that change the pressure. Destroy a boss or outlast it to earn a relic cache. Reach the Collapsar finale, break the storm, and take your build into overtime.

04

Relics from boss caches

Outlast or defeat a boss, or clear a rift, to earn a cache — choose one Relic to hold. Nova Bomb clears the screen, Aegis Cell shields your hull, Chain Storm chains lightning through clusters, Magnet Surge vacuums every pickup instantly. Your relic bar holds three; tap any slot to fire it.

05

The Reactor keeps running while you're away

Your idle Reactor generates Cores between sessions. Open the Hub and collect before the cap fills — a full cap stops earning. Upgrade the rate and cap to build a bigger fuel supply with every check-in.

06

Build stronger personal flights

Spend Cores at the Forge for stronger weapons, higher integrity, faster weapon tempo, and wider pickup pull. Those upgrades belong to regular, unranked flights; Daily Storm and Open League keep their equal starting build.

07

Open League: same ship for everyone

Open League runs use a standard loadout, the same for everyone, so no Forge or Pro upgrade changes a ranking. Weekly and all-time boards; best survival time wins, with kills breaking ties. Tap a ranked pilot to inspect their weapons and evolutions. Daily Storm stays separate with the same starting build for everyone.

Why it exists

Built for a reason.

Ionstorm exists because horde survival gets powerful when the build compounds — run upgrades, idle Cores, Relics from bosses, and Forge permanents turn each session into a stronger start.

Made for horde-survival and roguelite fans who want hundreds of enemies on screen, fast builds, idle check-in hooks, and just-one-more-run escalation.

A fresh storm. Every day.

Fair unlocks

Play free. Own the rest when it earns it.

Always free

Start playing today

Free to start on iPhone and Android.

Unlock

Unlimited flights. Optional Pro.

  • Free: unlimited regular flights and one ranked Daily each UTC day
  • Ionstorm Full Game Unlock: $4.99 one-time
  • StackForge Play Pass: $2.99/month or $14.99/year — Pro across StackForge games

No ads, energy systems, or forced run limits. Unlimited regular flights, ranked Daily Storm, and Open League are free. Ionstorm Pro opens every Forge and Reactor upgrade for regular flights, three saved loadouts, and 2× and 3× play speed. Unranked Daily practice is free for everyone. Pro never changes a ranked starting build.

Play Pass

One pass, every StackForge game

$2.99 a month or $14.99 a year unlocks Pro in every StackForge game, plus One Good Thing.

Store prices appear in the app in your local currency.

Our promise, in every StackForge game

No ads. Ever.

  • No banners
  • No videos between levels
  • No watching ads for rewards
  • No advertising code in any app

Our games pay for themselves with optional unlocks, never with your attention.

  • We never sell your data.

    Not to advertisers, not to data brokers, not to anyone.

  • We don’t track you.

    Nothing in our apps follows you across other apps or websites.

  • No third-party analytics.

    Our games carry no outside analytics, attribution or tracking code.

  • No cookies. Not even here.

    This website sets no cookies at all, and never measures you as an individual.

  • No account needed.

    Every game plays without signing up. An account is optional: it carries the Play Pass between games, and cloud saves in the games that have them.

  • Pay once, own it.

    $4.99 unlocks a game for good. A subscription is only ever an option.

Ready when you are

Play Ionstorm.

Free to start on iPhone and Android, with no ads, ever.